CN108411767A - A kind of self-closing type closes up box hat system and construction method - Google Patents
A kind of self-closing type closes up box hat system and construction method Download PDFInfo
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- CN108411767A CN108411767A CN201810119257.7A CN201810119257A CN108411767A CN 108411767 A CN108411767 A CN 108411767A CN 201810119257 A CN201810119257 A CN 201810119257A CN 108411767 A CN108411767 A CN 108411767A
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- box hat
- sliding rail
- carriage
- shaped sliding
- buried
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/08—Methods or apparatus specially adapted for erecting or assembling bridges by rotational movement of the bridge or bridge sections
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Abstract
The present invention relates to a kind of self-closing types to close up box hat system and construction method, the system includes both ends cantilever casting beam and the pre-buried box hat set on both ends cantilever casting beam lower part, the WELDING STUDS for connecting pre-buried box hat and both ends cantilever casting beam, set on pre-buried box hat inner side closure box hat, further include be set to both ends cantilever beam flange plate on the first carriage, the second carriage in both ends cantilever beam web and the third carriage on the cantilever casting beam bottom plate of both ends.The present invention closes up box hat system using self-closing type, and box hat quick-make, the influence to road under bridge can be allowed to minimize so that swivel spanning existing railway, highway are safer, are optimized on the duration, reduce cost.
Description
Technical field
The present invention relates to box hat system is closed up, especially a kind of self-closing type closes up box hat system, further relates to its construction party
Method.
Background technology
In railway, highway construction, newly-built railway is inevitably encountered, highway is needed across existing railway and numerous
The problem of busy highway, especially crosses over existing railway, highway in railway, the big span continuous beam of highway, continuous rigid frame bridge
When, it at this moment will be considered as the construction method small to existing line Influence to operation, rotator construction is a kind of preferable method, when
When being closed up using the intermediate box hat of both sides swivel, the influence to existing road can be reduced to greatest extent, but still suffers from and turns
Body in place after box hat notch welding, the problem of influencing existing railway under bridge, highway operation.Moreover, be closed box hat lifting and
There is also the imperfect problems of stability in closing course, and therefore, it is necessary to make improvement to closing up box hat system and construction method.
Invention content
To solve the above problems, an object of the present disclosure, which is to provide a kind of self-closing type, closes up box hat system, the second mesh
Be its construction method is provided so that the influence to road under bridge minimizes, not only more ripe in technology, makes
It is safer that spanning existing railway, highway must be turned.
The specific technical solution of the present invention is as follows：
A kind of self-closing type closes up box hat system, including both ends cantilever casting beam and the pre-buried box hat set on both ends cantilever casting beam lower part, even
Connect pre-buried box hat and both ends cantilever casting beam WELDING STUDS, set on pre-buried box hat inner side closure box hat, further include be set to both ends
The first carriage on cantilever beam flange plate, the second carriage in both ends cantilever beam web and be set to both ends cantilever
Third carriage on beam bottom plate, the first carriage, the second carriage and third carriage are connect with box hat is closed,
It is closed box hat and moves to pre-buried box hat gap portions along the first carriage, the second carriage and third carriage, be closed
Box hat shape is adapted to pre-buried steel shell phase；WELDING STUDS is evenly arranged, and one end is welded on pre-buried box hat, and the other end is embedded to cantilever casting beam
In concrete；It is closed the shell bracing means that box hat is equipped with inside supporing shell, shell bracing means and the first carriage,
Second carriage and third carriage are not in contact with each other.
Further, closure box hat includes shell and uniformly corresponds to the reinforcement steel plate of runner device set on case inside, the
One carriage, third carriage are connect with the reinforcement steel plate for being closed box hat.
Further, the first carriage includes several first be arranged along both ends cantilever casting beam both sides flange plate length direction
If pre-buried steel bayonet, the first I-shaped sliding rail between pre-buried steel bayonet, set on I-shaped sliding rail upper edge I-shaped sliding rail movement
Dry first roller bearing and the first lifting rope being connect with the first roller bearing both ends, the first lifting rope closure box hat corresponding with the flange plate
Reinforce steel plate connection.
Further, the second carriage includes several being set to the be arranged along both ends cantilever casting beam both sides web length direction
Two pre-buried steel bayonets and pre-embedded steel slab, supporter and the second I-shaped sliding rail set on pre-embedded steel slab side, wherein pre-embedded steel slab
It is arranged below the second pre-buried steel bayonet and with the second pre-buried steel bayonet interval, the second I-shaped sliding rail is set to the second pre-buried steel card
Between mouthful and on supporter.
Further, it is closed and is equipped with I-shaped connector and the N8 gears on front side of I-shaped connector in the middle part of two coxostermum of box hat
I-shaped connector is protruded on the downside of plate and N8 baffles, I-shaped connector is slided along the second I-shaped sliding rail.
Further, several reinforcing bars that the pre-embedded steel slab other side passes through several embedded bars and cantilever casting beam both sides web outside
Connection.
Further, third carriage includes several being set along both ends cantilever casting beam both sides floor length direction and width direction
The third pre-buried steel bayonet set, the third I-shaped sliding rail being set to along its length between pre-buried steel bayonet are set to third I-shaped and slide
Several second roller bearings of rail upper edge I-shaped sliding rail movement and the second lifting rope being connect with the second roller bearing both ends, the second lifting rope and bottom plate
The corresponding reinforcement steel plate connection for being closed box hat.
Further, further include that I-shaped sliding rail fixes safety rope and is closed box hat fixation safety rope, I-shaped sliding rail fixes peace
Full rope one end is fixed with I-shaped sliding rail, and the other end is connected with pre-buried steel bayonet, and length is adjustable.It is closed box hat and fixes safety rope one end
With the reinforcement Interal fixation for being closed box hat, the other end is connected with pre-buried steel bayonet, and length is adjustable.
Further, shell bracing means includes being set to be closed the top stull of box hat, be set to closure box hat bottom and side
Several end connecting plates, several middle part connecting plates, several top channel steel diagonal braces, several lower part channel steel diagonal braces and the middle part in face are horizontal
Support.Lower part channel steel diagonal brace one end is set on the connecting plate of end, and the other end is connected to using middle part connecting plate in the stull of middle part, top
Channel steel diagonal brace one end is set in the stull of top, and the other end is connected to using middle part connecting plate in the stull of middle part, it is upper and lower it is corresponding on
Same middle part connecting plate is intersected between portion's channel steel diagonal brace and lower part channel steel diagonal brace two-by-two, middle part stull is connected across each middle part
Plate is fixedly arranged on using end connecting plate and is closed box hat both sides.
Above-mentioned self-closing type of the present invention closes up the construction method of box hat system, includes the following steps：
Step（1）, construction bridges basis, bridge pier, swivel structure, while prefabricated pre-buried box hat, WELDING STUDS is welded, is filled in cantilever
Both ends cantilever casting beam is noted, when span centre most back segment beam body of constructing, the pre-buried steel bayonet of pre-embedded steel slab and each carriage is embedded to outstanding
It pours in the concrete of beam, the pre-buried box hat of installation；
Step（2）, prefabricated closure box hat, and install and be closed box hat shell bracing means；
Step（3）, the components such as I-shaped sliding rail, lifting rope, roller bearing and fixed safety rope that prepare each carriage；
Step（4）, lifting is closed box hat, while installing to be closed box hat and fix and safety rope and lock；
Step（5）, corresponding I-shaped sliding rail is installed in pre-buried bayonet, installation roller bearing, lifting rope and I-shaped sliding rail fix safety rope
And it locks；Each carriage is not contacted with shell bracing means；
Step（6）, adjustment I-shaped sliding rail elevation and position, it is dead with grillage plug；
Step（7）, bridge rotating it is in place, adjust beam body posture；
Step（8）, unclamp the grillage of I-shaped sliding rail and I-shaped sliding rail fixes safety rope, quickly moved under the protection of fixed safety rope
It starts building word sliding rail, keeps it in place；
Step（9）, adjustment I-shaped sliding rail position and absolute altitude, lock I-shaped sliding rail again with grillage, remove consolidating for I-shaped sliding rail
Determine safety rope.
Step（10）, unlock and be closed after box hat fixes safety rope, be closed box hat the other end is dilatory, keep it quickly in place.
Step（11）, to be closed box hat welded with pre-buried box hat.
Compared with prior art, the present invention has the following advantages：
（1）, self-closing type close up box hat and close up method compared to common box hat, optimization processing is carried out in structure, has installed slideway additional
System and bracing means, also so that the influence to road under bridge minimizes, make box hat not only so that box hat structure is more stablized
Notch close segments can fast move in place, not have to the welding above road, not only more ripe in technology so that swivel
Spanning existing railway, highway are safer, are to solve the most economical and feasible scheme of closure segment welding.
（2）Load-carrying member of the WELDING STUDS as pre-buried box hat, and box hat chute system can be used as the auxiliary for being closed box hat section
Load-carrying construction, the load-carrying construction in closing course and later stage concreting process as close segments.So that construction is more pacified
Entirely.
（3）, box hat is coordinated as permanent structure, beam body globality after the completion of construction, appearance is preferable.
（4）, engineering can more safely perform, short time limit, save engineering cost, economical rationality, technological innovation.
Description of the drawings
Fig. 1 is the structural schematic diagram that the self-closing type of invention closes up the carriage of box hat system；
Fig. 2 is the side view that the self-closing type of invention closes up the carriage of box hat system；
Fig. 3 is the enlarged drawing of the second carriage of invention；
Fig. 4 is the enlarged drawing of the third carriage of invention；
Fig. 5 is the structural schematic diagram of close segments box hat bracing means；
Fig. 6 is the side view of close segments box hat bracing means.
Specific implementation mode
Below in conjunction with the attached drawing in inventive embodiments, the technical solution in the present embodiment is clearly and completely retouched
It states, it is clear that described embodiment is only rather than whole example to inventing a part of example.Based on the reality in invention
Example is applied, the every other embodiment that those of ordinary skill in the art are obtained under the premise of not making the creative labor all belongs to
In the range of invention protection.
As shown in Figs. 1-2, a kind of self-closing type of the present embodiment closes up box hat system, including both ends cantilever casting beam 1 and is set to
The pre-buried box hat 6 of 1 lower part of both ends cantilever casting beam is set to pre-buried the WELDING STUDS 8 that pre-buried box hat 6 and both ends cantilever casting beam 1 are attached
The closure box hat 5 of 6 inner side of box hat, is set to both ends cantilever at the first carriage 2 on 1 flange plate of both ends cantilever casting beam
The second carriage 3 on 1 web of beam and the third carriage 4 on 1 bottom plate of both ends cantilever casting beam, the first carriage 2,
Second carriage 3 and third carriage 4 are connect with box hat 5 is closed, and are closed box hat 5 and are slided along the first carriage 2, second
Device 3 and third carriage 4 move to 6 gap portions of pre-buried box hat, are closed 5 shape of box hat and are adapted with pre-buried box hat 6.In advance
Box hat 6 is buried to be attached by WELDING STUDS 8 and both ends cantilever casting beam 1.
WELDING STUDS 8 a diameter of 25mm, long 250mm, it is 30cm to be longitudinally arranged spacing, and lateral arrangement spacing is 40cm, one end
It is welded on pre-buried box hat 6, the other end is embedded in 1 concrete of cantilever casting beam.
It is closed the reinforcement steel plate that box hat 5 includes shell and is uniformly set to case inside, the first carriage 2 and third sliding
Device 4 is connect with the reinforcement steel plate for being closed box hat 5.
Pre-buried box hat 6 includes the box hat of one piece of 3.2m and one piece of 2.3m long, and equal thickness 16mm, height, width can be according to beam bodies
The length of size adjusting, embedment cantilever casting beam 1 is 2m, the cantilevered out 1.2m in one end, the cantilevered out 0.3m of the other end；Box hat 5 is closed than pre-buried
Box hat 6 is small, length 1.2m, thick 12mm, and height, width can be mounted on 6 inside of pre-buried box hat according to beam body size adjusting,
Between coating butter, both ends and the lap of splice of pre-buried box hat 6 are 0.15m after closure.
First carriage 2 includes several the first pre-buried steels along the 1 both sides flange plate length direction setting of both ends cantilever casting beam
Bayonet 2.1, is set to 2.2 upper edge of the first I-shaped sliding rail the at the first I-shaped sliding rail 2.2 between the first pre-buried steel bayonet 2.1
Several first roller bearings 2.3 of one I-shaped sliding rail 2.2 movement and the first lifting rope 2.4 being connect with 2.3 both ends of the first roller bearing, first hangs
The reinforcement steel plate connection for being closed box hat 5 corresponding with the flange plate of rope 2.4.
As shown in Figure 2,3, the second carriage 3 includes that several be set to sets along 1 both sides web length direction of both ends cantilever casting beam
The second pre-buried steel bayonet 3.1 and pre-embedded steel slab 3.2, the supporter 3.3 and the second I-shaped set on 3.2 side of pre-embedded steel slab set
Sliding rail 3.4, wherein pre-embedded steel slab 3.2 is set to 3.1 lower section of the second pre-buried steel bayonet and is set with the second pre-buried steel bayonet 3.1 interval
It sets, the second I-shaped sliding rail 3.4 is set between the second pre-buried steel bayonet 3.1 and on supporter 3.3.5 middle part of box hat is closed to set
There are I-shaped connector 3.5 and the N8 baffles 3.6 on front side of I-shaped connector and 3.6 downside protrusion I-shaped connector of N8 baffles,
I-shaped connector 3.5 is slided along the second I-shaped sliding rail 3.4.3.2 other side of pre-embedded steel slab passes through several embedded bars 3.7 and cantilever
Several bar connectings of 1 web outside of beam.Supporter 3.3 can be I-steel.
As shown in Figure 2,4, third carriage 4 includes several along 1 both sides floor length direction of both ends cantilever casting beam and width
The third pre-buried steel bayonet 4.1 of direction setting, along its length the third I-shaped sliding rail 4.2 between pre-buried steel bayonet 4.1,
Connect set on several second roller bearings 4.3 of 4.2 upper edge I-shaped sliding rail 4.2 of third I-shaped sliding rail movement and with 4.3 both ends of the second roller bearing
The second lifting rope 4.4 connect, the reinforcement steel plate connection for being closed box hat 5 corresponding with bottom plate of the second lifting rope 4.4.
The present embodiment is also provided with the first I-shaped sliding rail fixation safety rope 2.5, the second I-shaped sliding rail fixes safety rope 3.8,
Third I-shaped sliding rail fixes safety rope 4.5, first and is closed the box hat fixation closure box hat fixation safety rope of safety rope 2.6 and second
4.6.First I-shaped sliding rail fixes safety rope 2.5, the second I-shaped sliding rail fixes safety rope 3.8 and third I-shaped sliding rail fixes safety
Restrict 4.5 one end respectively with the first I-shaped sliding rail 2.2, the second I-shaped sliding rail 3.4, third I-shaped sliding rail 4.2 fix, the other end difference
It is connect with the first pre-buried steel bayonet 2.1, the second pre-buried steel bayonet 3.1, third pre-buried steel bayonet 4.1, and length is adjustable.First
It is closed box hat and fixes 4.6 one end of the closure box hat fixation safety rope of safety rope 2.6, second reinforcement steel corresponding with box hat is closed respectively
Plate is fixed, and the other end is connect with the first pre-buried steel bayonet 2.1, third pre-buried steel bayonet 4.1 respectively, and length is adjustable.
First pre-buried steel bayonet 2.1, the second pre-buried steel bayonet 3.1, third pre-buried steel bayonet 4.1 are made hooked and are directly buried
In the concrete for entering cantilever casting beam 1, buries people's depth and be not less than 20cm.Grillage is directly padded on the first I-shaped sliding rail 2.2 and third I-shaped
Sliding rail 4.2 for stoppering the first I-shaped sliding rail 2.2 and third I-shaped sliding rail 4.2, and is adjusted as needed in the following, thickness is adjustable
Its absolute altitude.
As shown in figure 5, being closed the shell bracing means 7 that box hat 5 is equipped with inside supporing shell, shell bracing means 7 wraps
It includes set on top stull 7.5, several end connecting plates 7.2 set on closure box hat bottom, the connection of several middle parts for being closed box hat 5
Plate 7.1, several top channel steel diagonal braces 7.4, several lower part channel steel diagonal braces 7.6 and middle part stull 7.3, lower part channel steel diagonal brace 7.6
One end is set on end connecting plate 7.2, and the other end is connected to using middle part connecting plate 7.1 in the stull 7.3 of middle part, and top channel steel is oblique
7.4 one end are supportted in top stull 7.5, the other end is connected to using middle part connecting plate 7.1 in the stull 7.3 of middle part, right up and down
Same middle part connecting plate 7.1, middle part stull are intersected between the top channel steel diagonal brace 7.4 answered and lower part channel steel diagonal brace 7.6 two-by-two
7.3, which pass through each middle part connecting plate 7.1 to be fixedly arranged on using end connecting plate 7.2, is closed 5 both sides of box hat.
End connecting plate 7.2 can be welded on the inside for being closed box hat 5,7.4 one end of top channel steel diagonal brace and top stull
7.5 welding, the other end are welded using middle part connecting plate 7.1 and middle part stull 7.3, and channel steel diagonal brace 7.6 one end in lower part connects with end
Fishplate bar 7.2 welds, and the other end is welded using middle part connecting plate 7.1 and middle part stull 7.3, two between upper and lower corresponding channel steel diagonal brace
Two intersect at the welding of middle part stull 7.3 in same middle part connecting plate 7.1, and middle part stull 7.3 is across each middle part connecting plate 7.1
It is welded with end connecting plate 7.2, forms the support to being closed box hat 5, and the both ends of top stull 7.5 pass through end connecting plate
7.2, which are connected to the side being closed at the top of 5 edge of a wing of box hat, forms the inside lattice support system for being closed box hat 5 with this.
When assembling, shell bracing means 7 and the first carriage 2, the second carriage 3 and third carriage 4 are mutual not
Contact does not influence box hat sliding.
As shown in fig. 6, being closed parallel on box hat 5 set there are two shell bracing means 7.
The present embodiment using the pre-buried box hat 6 of 1 final stage of both ends cantilever casting beam, pre-embedded steel slab 3.1, each carriage it is pre-
Steel bayonet is buried, lifting installation gap is closed box hat 5 on the inside of one end of cantilevered out box hat length, while installing each cunning in corresponding position
The I-shaped sliding rail of dynamic device, installs lifting rope and roller bearing, adjusts absolute altitude, so that I-shaped sliding rail is participated in the stress for being closed box hat 5, then uses
Grillage fills in dead I-shaped sliding rail in each steel bayonet, is lockked with fixed safety rope and is closed box hat 5 and each I-shaped sliding rail, works as swivel
After in place, timber wedge in each steel bayonet of quick release, unclamps the fixation safety rope of each I-shaped sliding rail before the deadline, and
Each I-shaped sliding rail is adjusted under fixed safety rope protection, final position is reached, adjusts absolute altitude again, with timber wedge in steel card
The dead each I-shaped sliding rail of plug in mouthful, unlocks each closure box hat and fixes safety rope, then pulls and is closed box hat 5, it is made quickly to seal
Close box hat notch, in inside welding overlapping the slot after closing, guarantee will not leak, remove and be closed box hat bracing means 7 and second and slide
Dynamic device 3, then carries out beam body in box hat and pours, and the constructions such as stretch-draw prestressing force after the completion of construction, remove the first carriage
2 and third carriage 4.
Roller bearing and lifting rope under each I-shaped sliding rail support are being closed box hat as the auxiliary load-carrying construction for being closed box hat 5
In 5 liftings, beam body swivel, mobile closure box hat 5 and later stage box hat when casting concrete, must not it remove, until prestressing force
Drawknot beam can cut lifting rope, remove roller bearing.
Specific construction method, includes the following steps：
Step（1）, construction bridges basis, bridge pier, swivel structure, while prefabricated pre-buried box hat 6, WELDING STUDS 8 is welded, in cantilever
Be perfused both ends cantilever casting beam 1, construct span centre most back segment beam body when, by the pre-buried steel bayonet of pre-embedded steel slab 3.2 and each carriage
It is embedded in the concrete of cantilever casting beam 1, pre-buried box hat 6 is installed；
Step（2）, prefabricated closure box hat 5, and shell bracing means 7 is installed；7 erection sequence of shell bracing means is as follows：It makes
When being closed 5 component of box hat, end connecting plate 7.2 is welded according to design, transports to building site and used after being closed 5 assembly of box hat
Middle connecting plate 7.1, end connecting plate 7.2 are welded to connect lower part channel steel diagonal brace 7.6 and middle part stull 7.3, finally adopt
Top stull 7.5 and middle part stull 7.3 are welded to connect with top channel steel diagonal brace 7.4, middle connecting plate 7.1, most end form
At the internal reinforcement for being closed box hat 5.Box hat 5 is closed in factory's precast block, transport to construction site, piecemeal carries out assembled
Welding.
Step（3）, the components such as I-shaped sliding rail, lifting rope, roller bearing and fixed safety rope that prepare each carriage；Step
（4）, lifting be closed box hat 5, installation be closed box hat fix safety rope simultaneously lock；
Step（5）, corresponding I-shaped sliding rail is installed in pre-buried steel bayonet, installation roller bearing, lifting rope and I-shaped sliding rail fix safety
It restricts and locks；Each carriage is not contacted with shell bracing means；
Step（6）, adjustment I-shaped sliding rail elevation and position, it is dead with grillage plug；
Step（7）, bridge rotating it is in place, adjust beam body posture；
Step（8）, unclamp the grillage of I-shaped sliding rail and I-shaped sliding rail fixes safety rope, quickly moved under the protection of fixed safety rope
It starts building word sliding rail, keeps it in place；
Step（9）, adjustment I-shaped sliding rail position and absolute altitude, lock I-shaped sliding rail again with grillage, remove consolidating for I-shaped sliding rail
Determine safety rope.
Step（10）, unlock and be closed after box hat fixes safety rope, be closed box hat 5 the other end is dilatory, keep it quickly in place.
Step（11）, to be closed box hat 5 welded with pre-buried box hat 6.
Step（12）, remove shell bracing means 7 and the second carriage 3.
Step（13）, in box hat construct closure segment beam body concrete, stretch-draw prestressing force.
Step（14）, remove the first carriage 2 and third carriage 4.
Step（15）, construction bridges other structures.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of self-closing type closes up box hat system, including both ends cantilever casting beam and the pre-buried box hat set on both ends cantilever casting beam lower part,
Set on pre-buried box hat inner side closure box hat, it is characterized in that：Further include the pre-buried box hat of connection and both ends cantilever casting beam is cut
Power nail, the first carriage on both ends cantilever beam flange plate, the second carriage in both ends cantilever beam web
With the third carriage on the cantilever casting beam bottom plate of both ends, the first carriage, the second carriage and third carriage
It is connect with box hat is closed, is closed box hat and moves to pre-buried steel along the first carriage, the second carriage and third carriage
Shell gap portions are closed box hat shape and are adapted to pre-buried steel shell phase；WELDING STUDS is evenly arranged, and one end is welded on pre-buried box hat,
The other end is embedded in cantilever casting beam concrete；It is closed the shell bracing means that box hat is equipped with inside supporing shell, shell reinforces dress
It sets and is not in contact with each other with the first carriage, the second carriage and third carriage.
2. self-closing type according to claim 1 closes up box hat system, it is characterised in that：Be closed box hat include shell and
The even reinforcement steel plate that runner device is corresponded to set on case inside, the first carriage, third carriage add with closure box hat
Strong steel plate connection.
3. self-closing type according to claim 2 closes up box hat system, it is characterised in that：First carriage includes several
The first pre-buried steel bayonet along the setting of both ends cantilever casting beam both sides flange plate length direction, the first work between pre-buried steel bayonet
Word sliding rail, set on the movement of I-shaped sliding rail upper edge I-shaped sliding rail several first roller bearings and what is connect with the first roller bearing both ends first hang
Rope, the reinforcement steel plate connection for being closed box hat corresponding with the flange plate of the first lifting rope.
4. self-closing type according to claim 2 closes up box hat system, it is characterised in that：Second carriage includes several
Set on the second pre-buried steel bayonet and pre-embedded steel slab being arranged along both ends cantilever casting beam both sides web length direction, it is set to pre-embedded steel slab one
The supporter of side and the second I-shaped sliding rail, wherein pre-embedded steel slab be set to below the second pre-buried steel bayonet and with the second pre-buried steel
Bayonet interval is arranged, and the second I-shaped sliding rail is set between the second pre-buried steel bayonet and on supporter.
5. self-closing type according to claim 4 closes up box hat system, it is characterised in that：It is closed in the middle part of two coxostermum of box hat
I-shaped connector, I-shaped connection are protruded on the downside of N8 baffles and N8 baffles equipped with I-shaped connector and on front side of I-shaped connector
Part is slided along the second I-shaped sliding rail.
6. self-closing type according to claim 4 closes up box hat system, it is characterised in that：If the pre-embedded steel slab other side by
Several bar connectings of dry embedded bar and cantilever casting beam both sides web outside.
7. self-closing type according to claim 2 closes up box hat system, it is characterised in that：Third carriage includes several
Along the third pre-buried steel bayonet of both ends cantilever casting beam both sides floor length direction and width direction setting, along its length set on pre-buried
Third I-shaped sliding rail between steel bayonet, set on several second roller bearings of third I-shaped sliding rail upper edge I-shaped sliding rail movement and with the
Second lifting rope of two roller bearing both ends connection, the reinforcement steel plate connection for being closed box hat corresponding with bottom plate of the second lifting rope.
8. the self-closing type according to claim 2,4 or 7 closes up box hat system, it is characterised in that：It further include I-shaped sliding rail
Fixed safety rope and be closed box hat and fix safety rope, I-shaped sliding rail is fixed safety rope one end and is fixed with I-shaped sliding rail, the other end and
Pre-buried steel bayonet is connected, and length is adjustable, is closed box hat and fixes safety rope one end and the reinforcement Interal fixation for being closed box hat, the other end
It is connected with pre-buried steel bayonet, length is adjustable.
9. the self-closing type according to one of claim 1-7 closes up box hat system, it is characterised in that：Shell bracing means packet
It includes the top stull set on closure box hat, connected with several end connecting plates of side, several middle parts set on closure box hat bottom
Plate, several top channel steel diagonal braces, several lower part channel steel diagonal braces and middle part stull；Lower part channel steel diagonal brace one end is connected set on end
On plate, the other end is connected to using middle part connecting plate in the stull of middle part, and top channel steel diagonal brace one end is set in the stull of top, another
End is connected to using middle part connecting plate in the stull of middle part, up and down between corresponding top channel steel diagonal brace and lower part channel steel diagonal brace two-by-two
It intersects in same middle part connecting plate, middle part stull is fixedly arranged on closure box hat across each middle part connecting plate using end connecting plate
Both sides.
10. the self-closing type of one of claim 1-9 closes up the construction method of box hat system, it is characterised in that：Including walking as follows
Suddenly：
Step（1）, construction bridges basis, bridge pier, swivel structure, while prefabricated pre-buried box hat, setting WELDING STUDS, filled in cantilever
Both ends cantilever casting beam is noted, when span centre most back segment beam body of constructing, the pre-buried steel bayonet of pre-embedded steel slab and each carriage is embedded to outstanding
It pours in the concrete of beam, the pre-buried box hat of installation；
Step（2）, prefabricated closure box hat, and install and be closed box hat shell bracing means；
Step（3）, the I-shaped sliding rail, lifting rope, roller bearing and the fixed safety rope that prepare each carriage；
Step（4）, lifting is closed box hat, while installing to be closed box hat and fix and safety rope and lock；
Step（5）, corresponding I-shaped sliding rail is installed in pre-buried bayonet, installation roller bearing, lifting rope and I-shaped sliding rail fix safety rope
And it locks；Each carriage is not contacted with shell bracing means；
Step（6）, adjustment I-shaped sliding rail elevation and position, it is dead with grillage plug；
Step（7）, bridge rotating it is in place, adjust beam body posture；
Step（8）, unclamp the grillage of I-shaped sliding rail and I-shaped sliding rail fixes safety rope, quickly moved under the protection of fixed safety rope
It starts building word sliding rail, keeps it in place；
Step（9）, adjustment I-shaped sliding rail position and absolute altitude, lock I-shaped sliding rail again with grillage, remove consolidating for I-shaped sliding rail
Determine safety rope.
Step（10）, unlock and be closed after box hat fixes safety rope, be closed box hat the other end is dilatory, keep it quickly in place.
Step（11）, to be closed box hat welded with pre-buried box hat.
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| CN108411767B (en) | 2023-06-23 |
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